You boast of your love of liberty, your superior civilization, and your pure Christianity, while the whole political power of the nation (as embodied in the two great political parties) is solemnly pledged to support and perpetuate the enslavement of three millions of your countrymen…
Americans talk about how much they love freedom and god, but fail to realize that it isn't really freedom if not everyone gets to experience it.
bulwark
wall or protection
impiety,
lack of respect for god
impudence
lack of respect for others
To drag a man in fetters into the grand illuminated temple of liberty, and call upon him to join you in joyous anthems, were inhuman mockery and sacrilegious irony.
It seems to be a joke to white people to have a black man speak on a holiday that celebrates something his people don't have.
sacrilegious
disrespectful towards something sacred or holy
fetters
chains/shackles
bequeathed
passed on
hereunto
in this document
Blacksmith,
a person who makes and repairs things in iron by hand
ale-houses
bars/ tavern (places with beer)